Properties of the Number 67661

Sixty-Seven Thousand Six Hundred Sixty-One

Basics

Value: 67660 → 67661 → 67662

Parity: odd

Prime: No

Previous Prime: 67651

Next Prime: 67679

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 11 × 6151

Divisors: 1, 11, 6151, 67661

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000100001001101

Octal: 204115

Duodecimal: 331A5

Hexadecimal: 1084d

Square: 4578010921

Square Root: 260.1172812405973

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Indices of primes in A001644 (the Lucas 3-step numbers). A104576

Number of partitions of n into distinct parts such that number of parts is even. A67661

Product L(n)*S(n), where L(n) are Lucas numbers and S(n) are Lucas 3-step numbers = A000032(n) * A001644(n). A73446